Add LCM info to readme

README.md

@@ -48,6 +48,8 @@ That's it! You're now ready to start enhancing your ComfyUI workflows with Core
 - **VAE**: Variational Autoencoder. A model that learns a latent representation of images. It's used as a prior in
   Stable Diffusion.
 - **Checkpoint**: A file that contains the weights of a model. It's used to load models in Stable Diffusion.
+- **LCM**: [Latent Consistency Model](https://latent-consistency-models.github.io/). A type of model designed to
+  generate images with as few steps as possible.
 
 > [!NOTE]
 > Note on Compute Units:
@@ -64,6 +66,8 @@ These custom nodes come with a host of features, including:
 - Support for ANE (Apple Neural Engine)
 - Support for CPU and GPU
 - Support for `mlmodelc` and `mlpackage` files
+- Support for LCM models
+- LCM -> Core ML conversion
 
 > [!NOTE]
 > Please note that using Core ML models can take a bit longer to load initially.
@@ -139,6 +143,30 @@ resulting latent as you normally would in your workflow.
     - **LATENT**: The latent image output by the Core ML model. This can be decoded using a VAE Decoder or used as input
       to the next node in your workflow.
 
+#### LCM Converter
+
+![LCMConverter](./assets/lcm_converter.png?raw=true)
+
+This node converts [SimianLuo/LCM_Dreamshaper_v7](https://huggingface.co/SimianLuo/LCM_Dreamshaper_v7) model to Core
+ML. The converted model is stored in the `models/unet` directory and can be used with the Core ML UNet Loader. The
+conversion parameteres are encoded in the node name, so if the model already exists, the node will not convert it again.
+
+- **Inputs**:
+    - **height**: The desired height of the image generated by the model. The default is 512. Must be a multiple of 8.
+    - **width**: The desired width of the image generated by the model. The default is 512. Must be a multiple of 8.
+    - **batch_size**: The batch size of generated images. If you're planning to generate batches of images, you can try
+      increasing this value to speed up the generation process. The default is 1.
+    - **compute_unit**: The hardware on which the model should run. This is used only when loading the model and
+      doesn't affect the conversion process.
+    - **controlnet_support**: For the model to support ControlNet, it must be converted with this option set to True.
+      The default is False.
+
+> [!NOTE]
+> The conversion process can take a while, so please be patient.
+
+> [!NOTE]
+> When using the LCM model with Core ML Sampler, please set _sampler_name_ to `lcm` and _scheduler_ to `sgm_uniform`.
+
 #### Core ML Adapter (Experimental) (`CoreMLModelAdapter`)
 
 ![CoreMLModelAdapter](./assets/adapter.png?raw=true)
@@ -197,6 +225,13 @@ The ControlNet model used in this workflow is available
 Once downloaded, place the model in the `models/controlnet` directory.
 ![coreml-unet+controlnet](./assets/unet+sampler+controlnet.png?raw=true)
 
+#### LCM conversion with ControlNet
+
+This workflow uses LCM converter to
+convert [SimianLuo/LCM_Dreamshaper_v7](https://huggingface.co/SimianLuo/LCM_Dreamshaper_v7)
+model to Core ML. The converted model can then be used with or without ControlNet to generate images.
+![lcm+controlnet](./assets/lcm+controlnet.png?raw=true)
+
 ## Limitations
 
 - Core ML models are fixed in terms of their inputs and outputs.